libinih: add new package (#24289)

xfsprogs currently does not install with error message:
FATAL ERROR: could not find a valid ini.h header.
Adding this package libinih, and including it as
a dependency for xfsprogs seems to fix the issue. It could be
that we only need to add it for newer versions (if it worked before)
and maybe a maintainer can comment on that.

Signed-off-by: vsoch <vsoch@users.noreply.github.com>

Co-authored-by: vsoch <vsoch@users.noreply.github.com>

var/spack/repos/builtin/packages/libinih/package.py

@@ -0,0 +1,18 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Libinih(MesonPackage):
+    """
+    inih (INI Not Invented Here) is a simple .INI file parser written in C.
+    """
+
+    homepage = "https://github.com/benhoyt/inih"
+    url      = "https://github.com/benhoyt/inih/archive/refs/tags/r53.tar.gz"
+    git      = "https://github.com/benhoyt/inih.git"
+
+    version('master', branch="master")

var/spack/repos/builtin/packages/xfsprogs/package.py

@@ -19,6 +19,7 @@ class Xfsprogs(AutotoolsPackage):
 
     version('4.20.0', sha256='beafdfd080352a8c9d543491e0874d0e8809cb643a3b9d352d5feed38d77022a')
 
+    depends_on('libinih')
     depends_on('gettext')
     depends_on('uuid')
     depends_on('util-linux')